On Mon, Feb 18, 2002 at 06:34:33PM -0500, Benjamin Schollnick wrote:
> Folks,
>> I've got some questions, with windows usage of Twisted Matrix...
I use Twisted under Windows, so I may be able to offer some help..
> 1) setup.py install died....It stopped when it couldn't find "CL.EXE",
> while building
> something in the twisted.spread.cbanana section...
CL.EXE is a command line program that comes with MS Visual C++... setup.py
is basically trying to compile a C extension module. I can send you a
binary for that file if you don't have MS VC++ installed, otherwise run
VCVARS32.BAT and try again.
> 2) A lot of the files, don't have a .py extension. (i.e. mktap, twistd,
> etc)
> This is a major hindrance, because either I have to rename the file, or
> execute it explicitly "python mktap ....etc....". I have windows set to
> run
> the .py files via python automatically.
This is easily fixed with short bash script, but I agree, this is annoyed.
I'd suggest the Twisted developers look at how, e.g. PyChecker or Teud does
it (various scripts get installed in %PYTHONPATH%/scripts/<foo>.bat).
> 3) web.distrib has some issues. Mainly attempting to use the pwd unit under
[snip]
> 4) Error checking is extremely light....
[snip]
> 5) Even after fixing #3, mktap web --static static, isn't working.
I don't use the twisted.web stuff (yet ;), so I can't offer any help here :(
> 6) Under Windows, the default should be -n for twistd, and the PID file
> shouldn't be created. At least, as it is now. twistd just "stops", after
> it starts up and drops us back to the command line, and examination shows
> that the program isn't running. So at least as a workaround, the -n mode
> works....
Yeah, -n uses os.fork, which is not available under Windows. You probably
need to use NT services instead...
Alternatively, consider using the cygwin version of Python -- it is closer
to the unix version, and so os.fork will work. Also, it comes with gcc, so
cbanana would compile correctly. Unfortunately, I don't think it can
interoperate with the Win32 extensions (at least, not that I know of).
> I guest a better question is, has twistedmatrix been tested under Windows?
> It really seems to be unix centric in it's programming...
It basically works. The other problem to watch out for is that
Protocol.connectionFailed won't trigger unless you specify a timeout for
your tcp.Client, because select works slightly differently on Windows.
Incidentally, I'm not using the twistd stuff *at all* (I don't yet
understand the need for it under Windows, but then I don't even know exactly
what it's meant to do...). Instead, I'm using this little file:
--- ServerFramework/Service.py ---
import win32serviceutil, win32service
"""Example use of this module:
from ServerFramework.Service import Service, main
import ExampleServer
class ExampleServerService(Service):
_svc_name_ = "ExampleServerService"
_svc_display_name_ = "My Example Server Service"
main = ExampleServer.main
if __name__ == '__main__':
main(ExampleServerService)
"""
try:
import twisted
except ImportError:
print "Twisted Python must be installed to run this service"
raise
class Service(win32serviceutil.ServiceFramework):
"""I am a template service for ServerFramework servers.
You should subclass me and override the following attributes:
_svc_name_ -- see win32serviceutil docs
_svc_display_name_ -- see win32serviceutil docs
main -- function that starts your server
You can also override:
logFile -- filename for where debug messages will be saved
(default: c:/<_svc_name_>.log)
"""
_svc_name_ = "UnnamedServer"
_svc_display_name_ = "My UNNAMED Server"
main = None
logFile = None
def __init__(self, *args):
win32serviceutil.ServiceFramework.__init__(self, *args)
if not self.logFile:
self.logFile = 'c:/%s.log' % (self._svc_name_,)
def SvcDoRun(self):
from twisted.python.log import startLogging
startLogging(open(self.logFile,'a'))
# Call main, note that it is not a method of this class, so we use
# self.main.im_func() instead of self.main().
self.main.im_func()
def SvcStop(self):
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
from twisted.internet.main import shutDown
shutDown()
def main(svc):
win32serviceutil.HandleCommandLine(svc)
if __name__ == '__main__':
print "This is a library module, and should not be executed."
---
It basically wraps up the functionality of the win32serviceutil in a
convenient way for Twisted servers. Once you've used it as shown in the
example, just run it from the commandline -- it's self explantory (it uses
Mark Hammond's win32serviceutil.HandleCommandLine function to let you
install the service). I'm not sure if the self.main.im_func trick will work
on older Pythons; I use 2.2.
I hope this is of some use to you.
-Andrew.